Diyi Cheng

Visualizing Crystallization Dynamics and Transformation Pathways of Disordered Rocksalt Oxides During Thermally Activated Sol–Gel Synthesis

Diyi Cheng, Tim Kodalle, Anika T. Promi, Ansuman Halder et autres

ABSTRACT Sol–gel synthesis is a wet‐chemical processing route for fabricating functional materials with control over composition and microstructure at relatively low temperatures compared to conventional solid‐state synthesis. While sol–gel process initiates with intermixed molecular precursors, the early‐stage nucleation pathways are insufficiently understood. …

us, br (code pays fourni par la source)

Visualizing Crystallization Dynamics and Transformation Pathways of Disordered Rocksalt Oxides During Thermally Activated Sol-Gel Synthesis

Diyi Cheng, Tim Kodalle, Anika T. Promi, Ansuman Halder et autres

Sol-gel synthesis is a wet-chemical processing route for the fabrication of functional materials offering control over composition, morphology, and microstructure at relatively low processing temperatures compared to conventional solid-state synthesis methods. While the sol-gel process initiates with intermixed molecular precursors, the transformation …

Visualizing Crystallization Dynamics and Transformation Pathways of Disordered Rocksalt Oxides During Thermally Activated Sol-Gel Synthesis

Diyi Cheng, Tim Kodalle, Anika T. Promi, Ansuman Halder et autres

Sol-gel synthesis is a wet-chemical processing route for the fabrication of functional materials offering control over composition, morphology, and microstructure at relatively low processing temperatures compared to conventional solid-state synthesis methods. While the sol-gel process initiates with intermixed molecular precursors, the transformation …

us, br (code pays fourni par la source)

Datasets for "Visualizing crystallization dynamics and transformation pathways of DRX oxides during thermally activated sol-gel synthesis"

Diyi Cheng, Tim Kodalle, Anika Tabassum Promi, Ansuman Halder et autres

This dataset includes TEM raw data for the phase-mapping videos and Python codes for the automated phase map analysis method.

us (code pays fourni par la source)

Datasets for "Visualizing crystallization dynamics and transformation pathways of DRX oxides during thermally activated sol-gel synthesis"

Diyi Cheng, Tim Kodalle, Anika Tabassum Promi, Ansuman Halder et autres

This dataset includes TEM raw data for the phase-mapping videos and Python codes for the automated phase map analysis method.

us (code pays fourni par la source)

Guidelines for correlative imaging and analysis of reactive alkali metal battery materials

Shuang Bai, Zhao Liu, Diyi Cheng, Bingyu Lu et autres

Reliable characterization of alkali metals and their solid electrolyte interphases (SEIs) is essential for advancing high-energy batteries but remains difficult due to their extreme reactivity and beam sensitivity. This work redefines the experimental limits for high-resolution imaging of lithium and sodium metals. …

us (code pays fourni par la source)

A highly utilized and practical lithium-sulfur positive electrode enabled in all-solid-state batteries

Ashley Cronk, Xiaowei Wang, Jin An Sam Oh, So‐Yeon Ham et autres

Abstract All-solid-state batteries using sulfur-based positive electrodes (cathodes) offer a cost-effective route to achieve high specific energy. However, low active material utilization and cycle life hinder performance. Here, we demonstrate a positive electrode design that employs sulfide solid-state electrolytes, where a high …

us, kr (code pays fourni par la source)

Solvent Determines the Formation Pathway in Sol–Gel Synthesized Disordered Rock Salt Material for Lithium Ion Battery Application

Tim Kodalle, Yuxing Fei, Madeline Grass, Diyi Cheng et autres

The increasing demand for lithium-ion batteries with high capacity and cycling stability, in combination with the scarcity of cobalt and nickel, has led to significant efforts to develop new cathode materials based on earth-abundant transition metals. Mn- and Ti-based disordered rock salt …

us (code pays fourni par la source)

In Situ TEM Characterization of Battery Materials

Diyi Cheng, Jinseok Hong, Daewon Lee, Seung‐Yong Lee et autres

Transmission electron microscopy (TEM) is an indispensable analytical technique in materials research as it probes material information down to the atomic level and can be utilized to examine dynamic phenomena during material transformations. In situ TEM resolves transient metastable states via direct …

us, kr (code pays fourni par la source)

Guidelines for Correlative Imaging and Analysis of Reactive Lithium Metal Battery Materials

Shuang Bai, Zhao Liu, Diyi Cheng, Bingyu Lu et autres

To unlock the full potential of lithium metal batteries, a deep understanding of lithium metal reactivity and its solid electrolyte interphase is essential. Correlative imaging, combining focused ion beam and electron microscopy offers a powerful approach for multi-scale characterization. However, the extreme …

A highly utilized and practical lithium-sulfur cathode enabled in all-solid-state batteries

Ashley Cronk, Xiaowei Wang, Jin An Sam Oh, So‐Yeon Ham et autres

All-solid-state batteries (ASSB) using lithium-sulfur (Li-S) cathodes, present a low-cost energy storage solution that can achieve energy densities exceeding 500 Wh kg-1. However, their development in ASSBs has been hindered by poor kinetics, insulative interfaces, and (chemo)mechanical degradation, resulting in low utilization …

us (code pays fourni par la source)

Design principles for enabling an anode-free sodium all-solid-state battery

Grayson Deysher, Jin An Sam Oh, Yu‐Ting Chen, Baharak Sayahpour et autres

us, kr (code pays fourni par la source)